1131849 has 12 divisors (see below), whose sum is σ = 1721200. Its totient is φ = 714744.

The previous prime is 1131839. The next prime is 1131857. The reversal of 1131849 is 9481311.

It is not a de Polignac number, because 1131849 - 2⁷ = 1131721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1131829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3139 + ... + 3480.

2^1131849 is an apocalyptic number.

1131849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1131849 is a deficient number, since it is larger than the sum of its proper divisors (589351).

1131849 is a wasteful number, since it uses less digits than its factorization.

1131849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6644 (or 6641 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 1131849 is about 1063.8839222396. The cubic root of 1131849 is about 104.2148234579.

The spelling of 1131849 in words is "one million, one hundred thirty-one thousand, eight hundred forty-nine".